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A kind of photosensitive composition for thermal positive CTP plate

A heat-sensitive positive image and composition technology, which is applied in the direction of photosensitive materials for opto-mechanical equipment, etc., can solve the problems affecting printing operations, printing stains, coating residues in non-imaging areas, etc., and achieves strong resistance to strain. , The solubility difference is large, and the imaging effect is good.

Active Publication Date: 2020-06-26
安徽强邦新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this photosensitive composition, there is a poor stereotyping effect. In the alkaline developer, the solubility difference between the developed imaging area and the non-imaging area is not large enough, which easily causes the problem of coating residue in the non-imaging area, which greatly affects the subsequent printing operation. , resulting in certain printing smudges

Method used

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  • A kind of photosensitive composition for thermal positive CTP plate
  • A kind of photosensitive composition for thermal positive CTP plate
  • A kind of photosensitive composition for thermal positive CTP plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: A kind of photosensitive composition that is used for thermal positive CTP plate, comprises the following components by weight: 42kg of phenol-p-isopropylphenol-formaldehyde resin, 35kg of β-pinene phenol resin, sulfur Dicarbazone mercury complex salt (cyanine infrared absorbing dye) 7kg, trichloromethyl triazine compound (acid generator) 13kg, basic brilliant blue 18kg, additive 16kg and organic solvent 80kg.

[0031] Among them, the β-pinene phenol resin is a polymer of 22 resin monomers, with a molecular weight of more than 8500, and 16kg of additives include 2kg of coating enhancer, 7kg of sodium metaborate (development accelerator), 4kg of adhesion enhancer, sulfur Gold ammonium cyanate (sensitizer) 3kg. The final 80 kg of organic solvents includes 35 kg of methyl ethyl ketone, 32 kg of methyl isobutyl ketone and 13 kg of propylene glycol monoethyl ether.

[0032] The above-mentioned coating enhancer is triphenyltin, N-acryloylmorpholine, polypropyle...

Embodiment 2

[0034] Embodiment 2: a kind of photosensitive composition that is used for thermal positive CTP plate, comprises the following components by weight: 45kg of phenol-p-isopropylphenol-formaldehyde resin, 37kg of β-pinene phenol resin, sulfur Dicarbazone mercury complex salt (cyanine infrared absorbing dye) 8kg, trichloromethyl triazine compound (acid generator) 15kg, basic brilliant blue 20kg, additive 20kg and organic solvent 88kg.

[0035]Among them, the β-pinene phenol resin is a polymer of 25 resin monomers, with a molecular weight of more than 10,000, and 20kg of additives include 3kg of coating enhancer, 8kg of sodium metaborate (development accelerator), 5kg of adhesion enhancer, sulfur Gold ammonium cyanate (sensitizer) 4kg. The final 88 kg of organic solvents includes 38 kg of methyl ethyl ketone, 35 kg of methyl isobutyl ketone and 15 kg of propylene glycol monoethyl ether.

[0036] The above-mentioned coating enhancer is triphenyltin, N-acryloylmorpholine, polypropyl...

Embodiment 3

[0038] Embodiment 3: A kind of photosensitive composition that is used for thermal positive CTP plate, comprises the following components by weight: 48kg of phenol-p-isopropylphenol-formaldehyde resin, 38kg of β-pinene phenol resin, sulfur Dicarbazone mercury complex salt (cyanine infrared absorbing dye) 9kg, trichloromethyl triazine compound (acid generator) 16kg, basic brilliant blue 22kg, additive 24kg and organic solvent 100kg.

[0039] Among them, the β-pinene phenol resin is a polymer of 28 resin monomers, with a molecular weight of more than 11,000, and 24kg of additives include 4kg of coating enhancer, 9kg of sodium metaborate (development accelerator), 6kg of adhesion enhancer, sulfur Gold ammonium cyanate (sensitizer) 5kg. The last 100 kg of organic solvents includes 42 kg of methyl ethyl ketone, 39 kg of methyl isobutyl ketone and 19 kg of propylene glycol monoethyl ether.

[0040] The above-mentioned coating enhancer is triphenyltin, N-acryloylmorpholine, polyprop...

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Abstract

The invention belongs to the technical field of optical information recoding materials, and particularly relates to a photosensitive composition used for a temperature-sensitive positive image CTP plate. The composition includes, by weight, 42-56 parts of film forming resin, 35-41 parts of inhibitational / accelerational resin, 7-11 parts of infrared dye, 13-19 parts of an acid generating agent, 18-25 parts of background dye, 16-31 parts of an additive and 80-115 parts of an organic resin. Through adding terpene-phenolic resin as an inhibitational / accelerational substance and through a proper coating stability additive, an objective that developing and imaging effects of the composition after the composition is cured are good is achieved. The composition has advantages of a large solubility difference between an exposure zone and a non-exposed zone, good imaging effects, a high speed and high strain resistance of a coating.

Description

technical field [0001] The invention belongs to the technical field of application of optical information recording materials, and in particular relates to a photosensitive composition used for thermosensitive positive CTP plates. Background technique [0002] CTP plate-making technology is divided into photosensitive CTP plate-making technology and heat-sensitive CTP plate-making technology. Among them, thermal CTP plate-making technology is the most mature, stable and best printing technology. It has high printing quality and can be used in the future. Advantages of indoor operation. [0003] The main point of thermosensitive CTP technology is to use thermal imaging technology to rely on the change of material state after the plate absorbs heat during the stereotype process, so as to achieve the purpose of dissolving stereotype imaging. The principle of the stereotype technology is that the solvent-inhibiting and solubilizing substances undergo chemical changes under the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03F7/004
CPCG03F7/004
Inventor 郭良春
Owner 安徽强邦新材料股份有限公司
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